Very high levels are linked to heart disease, stroke, and inflammation of the pancreas (pancreatitis). While a drop in HDL may raise concerns, the overall impact on heart health depends on the broader risk profile of the individual. Other studies, however, suggest caution, especially in older men with preexisting heart disease. When it comes to TRT, HDL levels may go down, but this does not always lead to higher rates of heart attacks or strokes in studies. LDL and triglycerides can also change, depending on the dose and the type of testosterone used. In this section, we will go over why monitoring is needed, what the medical guidelines suggest, how often testing should happen, and which patients may need closer follow-up. On the other hand, men who combine therapy with weight loss strategies usually see the greatest benefits. Testosterone therapy sometimes helps reduce fat mass while increasing lean muscle, but the results are much stronger when paired with lifestyle changes. Exercise also reduces belly fat, which is closely linked to high LDL cholesterol and high triglycerides. On the other hand, diets rich in vegetables, fruits, whole grains, lean proteins, and healthy fats (like those from nuts, olive oil, or fatty fish) can lower LDL and raise HDL. Once LDL cholesterol is in the liver, this organ can filter LDL out of the body. HDL cholesterol ("good" cholesterol), LDL cholesterol ("bad" cholesterol), and other fats (like triglycerides) travel from your bloodstream to your liver. If TRT significantly improves symptoms of low testosterone (like energy, mood, and muscle mass), doctors may continue therapy while managing cholesterol with lifestyle or medications. HDL cholesterol levels are often considered when looking at someone’s risk for heart disease. Some studies have found that testosterone replacement therapy may cause slight shifts in cholesterol levels. While rare, extremely low cholesterol levels have been linked in some studies to hormone imbalances and reduced testosterone synthesis. Because cholesterol is a raw material for this hormone-making process, your body depends on it to maintain healthy testosterone levels. Cardiovascular risk increases in men with age in tandem with declining endogenous testosterone (T) production. Testosterone prescriptions have risen steadily and sharply in the USA despite a lack of clear understanding of the relationship between androgens and cardiovascular disease. Testosterone may directly relate with HDL-Ch levels, perhaps by regulating the activities of enzymes involved in HDL-Ch metabolism. Testosterone plays a central role in sexual health and overall well-being – it supports libido, sperm production, muscle mass, bone density, and mood regulation. Testosterone is the primary male sex hormone, though it’s present in all genders. Testosterone is synthesized from cholesterol, making their connection more significant than many people realize. Some evidence suggests injectable testosterone may have stronger effects on lowering HDL compared to gels or patches, but results are mixed. Men with high cholesterol before starting TRT may see greater improvements in triglycerides and LDL, while those with normal cholesterol may mainly notice reductions in HDL.